In considering applications for subdivision of land, the Planning Board shall be guided by the standards set forth hereinafter. Said standards shall be considered to be minimum requirements and shall be waived by the Board only under circumstances set forth in Article VI herein.
Character of land. Land to be subdivided shall be of
such character that it can be used safely for building purposes without danger
to health or peril from fire, flood or other menace.
Conformity to Official Map and Master Plan. Subdivisions
shall conform to the Official Map of the village and shall be in harmony with
the Master Plan, if such exists.
Specifications for required improvements. All required
improvements shall be constructed or installed to conform to the village specifications,
which may be obtained from the Village Engineer.
Width, location and construction. Streets shall be of
sufficient width, suitably located, and adequately constructed to conform
to the Master Plan, if such exists, and to accommodate the prospective traffic
and afford access for fire fighting, snow removal and other road maintenance
equipment. The arrangement of streets shall be such as to cause no undue hardship
to adjoining properties and shall be coordinated so as to compose a convenient
system.
Arrangement. The arrangement of streets in the subdivision
shall provide for the continuation of principal streets of adjoining subdivisions
and for proper projection of principal streets into adjoining properties which
are not yet subdivided in order to make possible necessary fire protection,
movement of traffic and the construction or extension, presently or when later
required, of needed utilities and public services, such as sewers, water and
drainage facilities. Where, in the opinion of the Planning Board, topographic
or other conditions make such continuance undesirable or impracticable, the
above conditions may be modified.
Special treatment along major arterial streets. When
a subdivision abuts or contains an existing or proposed major arterial street,
the Board may require marginal access streets, reverse frontage with screen
planting contained in a nonaccess reservation along the rear property line,
deep lots with rear service alleys or such other treatment as may be necessary
for adequate protection of residential properties and to afford separation
of through and local traffic.
Provision for future resubdivision. Where a tract is
subdivided into lots substantially larger than the minimum size required in
the zoning district in which a subdivision is located, the Board may require
that streets and lots be laid out so as to permit future resubdivision in
accordance with the requirements contained in these regulations.
Dead-end streets. The creation of dead-end or loop residential
streets will be encouraged wherever the Board finds that such type of development
will not interfere with normal traffic circulation in the area. In the case
of dead-end streets, where needed or desirable, the Board may require the
reservation of a twenty-foot-wide easement to provide for continuation of
pedestrian traffic and utilities to the next street. Subdivisions containing
20 lots or more shall have at least two street connections with existing public
streets or streets shown on the Official Map, if such exists, or streets on
an approved subdivision plat for which a bond has been filed.
Block size. Blocks generally shall not be less than 400
feet nor more than 1,200 feet in length. In general, no block width shall
be less than twice the normal lot depth. In blocks exceeding 800 feet in length,
the Planning Board may require the reservation of a twenty-foot-wide easement
through the block to provide for the crossing of underground utilities and
pedestrian traffic where needed or desirable and may further specify, at its
discretion, that a four-foot-wide paved footpath be included.
Intersections with collector or major arterial roads.
Minor or secondary street openings into such roads shall, in general, be at
least 500 feet apart.
Angle of intersection. In general, all streets shall
join each other so that, for a distance of at least 100 feet, the street is
approximately at right angles to the street it joins.
Relation to topography. The street plan of a proposed
subdivision shall bear a logical relationship to the topography of the property,
and all streets shall be arranged so as to obtain as many of the building
sites as possible at or above the grade of the streets. Grades of streets
shall conform as closely as possible to the original topography.
Other required streets. Where a subdivision borders on
or contains a railroad right-of-way or limited-access highway right-of-way,
the Planning Board may require a street approximately parallel to and on each
side of such right-of-way, at a distance suitable for the appropriate use
of the intervening land (as for park purposes in residential districts or
for commercial or industrial purposes in appropriate districts). Such distances
shall also be determined with due regard for the requirements of approach
grades and future grade separations.
Widths of rights-of-way. Streets shall have the following
widths. (When not indicated on the Master Plan or Official Map, if such exists,
the classification of streets shall be determined by the Board.)
Improvements. Streets shall be graded and improved with
pavements, curbs and gutters, sidewalks, storm drainage facilities, water
mains, sewers, streetlights and street signs, street trees (species and size
must be approved by the Planning Board) and fire hydrants, except where waivers
may be requested, and the Planning Board may waive, subject to appropriate
conditions, such improvements as it considers may be omitted without jeopardy
to the public health, safety and general welfare. Pedestrian easements shall
be improved as required by the Village Engineer. Such grading and improvements
shall be approved as to design and specifications by the Village Engineer.
Fire hydrants. Installation of fire hydrants shall be
in conformity with all requirements of standard thread and nut as specified
by the Village Board of Trustees.
Streetlighting facilities. Lighting facilities shall
be in conformance with the lighting system of the village. Such lighting standards
and fixtures shall be installed after approval by the appropriate power company
and the authorized village electrical inspector.
Utilities in streets. The Planning Board shall, wherever
possible, require that underground utilities, including electric and telephone
lines, be placed in the street right-of-way between the paved roadway and
street line to simplify location and repair of lines when they require attention.
The subdivider shall install underground service connections to the property
line of each lot within the subdivision for such required utilities before
the street is paved. It is the intention of these regulations that all electric
wires, telephone wires, television cables and other similar utilities shall
be located underground.
Utility easements. Where topography is such as to make
impractical the inclusion of utilities within the street rights-of-way, perpetual
unobstructed easements at least 20 feet in width shall be otherwise provided
with satisfactory access to the street. Wherever possible, easements shall
be continuous from block to block and shall present as few irregularities
as possible. Such easements shall be cleared and graded where required.
Grades. Grades of all streets shall conform in general
to the terrain and shall not be less than one-half percent (1/2%) nor more
than 6% for major or collector streets or 10% for minor streets in residential
zones, but in no case more than 3% within 50 feet of any intersection.
Changes in grade. All changes in grade shall be connected
by vertical curves of such length and radius as meet with the approval of
the Village Engineer so that clear visibility shall be provided for a safe
distance.
Curve radii at street intersections. All street right-of-way
lines at intersections shall be rounded by curves of at least a twenty-foot
radius, and curbs shall be adjusted accordingly.
Steep grades and curves; visibility of intersections.
A combination of steep grades and curves shall be avoided. In order to provide
visibility for traffic safety, that portion of any corner lot, whether at
an intersection entirely within the subdivision or of a new street with an
existing street, which is shown shaded on Sketch A shall be cleared of all
growth, except isolated trees, and obstructions above the level three feet
higher than the center line of the street. If directed, ground shall be excavated
to achieve visibility.
Dead-end streets (culs-de-sac). Where dead-end streets
are designed to be so permanently, they should, in general, not exceed 500
feet in length and shall terminate in a circular turnaround having a minimum
right-of-way radius of 75 feet and a pavement radius of 50 feet. At the end
of temporary dead-end streets, a temporary turnaround with a pavement radius
of 50 feet shall be provided, unless the Planning Board approves an alternate
arrangement.
Where a watercourse separates a proposed street from
abutting property, provision shall be made for access to all lots by means
of culverts or other structures of a design approved by the Village Engineer.
Where a subdivision is traversed by a watercourse, drainageway,
channel or stream, there shall be provided a stormwater easement or drainage
right-of-way as required by the Village Engineer, and in no case less than
20 feet in width.
Curve radii. In general, street lines within a block,
deflecting from each other at any one point by more than 10°, shall be
connected with a curve, the radius of which for the center line of the street
shall not be less than 400 feet on major streets, 200 feet on collector streets
and 100 feet on minor streets.
Service streets or loading space in commercial development.
Paved rear service streets of not less than 20 feet in width or, in lieu thereof,
adequate off-street loading space, suitably surfaced, shall be provided in
connection with lots designed for commercial use.
Free flow of vehicular traffic abutting commercial developments.
In front of areas zoned and designed for commercial use or where a change
of zoning to a zone which permits commercial use is contemplated, the street
width shall be increased by such amount on each side as may be deemed necessary
by the Planning Board to assure the free flow of through traffic without interference
by parked or parking vehicles and to provide adequate and safe parking space
for such commercial or business district.
Type of name. All street names shown on a preliminary
plat or subdivision plat shall be approved by the Planning Board. In general,
streets shall have names and not numbers or letters.
Names to be substantially different. Proposed street
names shall be substantially different so as not to be confused in sound or
spelling with present names, except that streets that join or are in alignment
with streets of an abutting or neighboring property shall bear the same name.
Generally, no street should change direction by more than 90° without
a change in street name.
Lots to be buildable. The lot arrangement shall be such
that, in constructing a building in compliance with the Zoning Ordinance,[1] there will be no foreseeable difficulties for reasons of topography
or other natural conditions. Lots should not be of such depth as to encourage
the later creation of a second building lot at the front or rear.
Side lines. All side lines of lots shall be at right
angles to straight street lines and radial to curved street lines, unless
a variance from this rule will give a better street or lot plan.
Corner lots. In general, corner lots should be larger
than interior lots to provide for proper building setback from each street
and provide a desirable building site.
Driveway access. Driveway access and grades shall conform
to specifications of the Village Driveway Ordinance, if one exists. Driveway
grades between the street and the setback line shall not exceed 10%.
Access from private streets. Access from private streets
shall be deemed acceptable only if such streets are designed and improved
in accordance with these regulations.
Monuments and lot corner markers. Permanent monuments
meeting specifications approved by the Village Engineer as to size, type and
installation shall be set at such block corners, angle points, points of curves
in streets and other points as the Village Engineer may require, and their
location shall be shown on the subdivision plat.
Removal of spring- and surface water. The subdivider
may be required by the Planning Board to carry away by pipe or open ditch
any spring- or surface water that may exist either previous to or as a result
of the subdivision. Such drainage facilities shall be located in the street
right-of-way, where feasible, or in perpetual unobstructed easements of appropriate
width.
Drainage structure to accommodate potential development
upstream. A culvert or other drainage facility shall, in each case, be large
enough to accommodate potential runoff from its entire upstream drainage area,
whether inside or outside the subdivision. The Village Engineer shall approve
the design and size of the facility based on anticipated runoff from a ten-year
storm under conditions of total potential development permitted in the watershed
by the Zoning Ordinance.[1]
Responsibility from drainage downstream. The subdivider's
engineer shall also study the effect of each subdivision on the existing downstream
drainage facilities outside the area of the subdivision; this study shall
be reviewed by the Village Engineer. Where it is anticipated that the additional
runoff incident to the development of the subdivision will overload an existing
downstream drainage facility during a five-year storm, the Planning Board
shall notify the Village Board of Trustees of such potential condition. In
such case, the Planning Board shall not approve the subdivision until provision
has been made for the improvement of said condition.
Land subject to flooding. Land subject to flooding or
land deemed by the Planning Board to be uninhabitable shall not be platted
for residential occupancy nor for such other uses as may increase danger to
health, life or property or aggravate the flood hazard, but such land within
the plat shall be set aside for such uses as shall not be endangered by periodic
or occasional inundation or improved in a manner satisfactory to the Planning
Board to remedy said hazardous conditions.
Recreation areas shown on village plan. Where a proposed park, playground or open space shown on the Village Plan is located in whole or in part in a subdivision, the Board shall require that such area or areas be shown on the plat in accordance with the requirements specified in Subsection B below. Such area or areas may be dedicated to the village or county by the subdivider if the Village Board of Trustees approves such dedication.
The Planning Board shall require that the plat show sites
of a character, extent and location suitable for the development of a park,
playground or other recreation purpose. The Planning Board may require that
the developer satisfactorily grade any such recreation areas shown on the
plat.
The Board shall require that not less than three acres
of recreation space be provided per 100 dwelling units shown on the plat.
However, in no case shall the amount be more than 10% of the total area of
the subdivision. Such area or areas may be dedicated to the village or county
by the subdivider if the Village Board of Trustees approves such dedication.
Information to be submitted. In the event that an area
to be used for a park or playground is required to be so shown, the subdivider
shall submit, prior to final approval, to the Board three prints (one on cloth)
drawn in ink showing, at a scale of not less than 30 feet to the inch, such
area and the following features thereof:
The boundaries of said area, giving lengths and bearings
of all straight lines and the radii, lengths, central angles and tangent distances
of all curves.
In cases where the Planning Board finds that, due to the size, topography or location of the subdivision, land for park, playground or other recreation purpose cannot be properly located therein or, if in the opinion of the Board, it is not desirable, the Board may waive the requirement that the plat show land for such purposes. The Board shall then require as a condition to approval of the plat a payment to the village of a sum of money equal to the fair market value of the land that would otherwise be acceptable as a recreation site. The Planning Board shall determine the fair market value. The amount of land which otherwise would have been acceptable as a recreation site shall be determined in accordance with the standards set forth in Subsection B.
Such amount shall be paid to the Village Board at the
time of final plat approval, and no plat shall be signed by the authorized
officer of the Planning Board until such payment is made. All such payments
shall be held by the Village Board of Trustees in a special Village Recreation
Site Acquisition and Improvement Fund to be used for the acquisition of land
that is suitable for permanent park, playground or other recreational purposes
and is so located that it will serve primarily the general neighborhood in
which the land covered by the plat lies, and said fund shall be used only
for park, playground or other recreational land acquisition or improvement.
Such money may also be used for the physical improvement of existing parks
or recreation areas serving the general neighborhood in which the land shown
on the plat is situated, provided that the Planning Board finds there is a
need for such improvements.
Reserve strips prohibited. Reserve strips of land which
might be used to control access from the proposed subdivision to any neighboring
property or to any land within the subdivision itself shall be prohibited.
Preservation of natural features. The Planning Board
shall, wherever possible, establish the preservation of all natural features
which add value to residential developments and to the community, such as
large trees or groves, watercourses and waterfalls, beaches, historic spots,
vistas and similar irreplaceable assets. No tree with a diameter of eight
inches or more as measured three feet above the base of the trunk shall be
removed unless such tree is within the right-of-way of a street as shown on
the final subdivision plat. Removal of additional trees shall be subject to
the approval of the Planning Board. In no case, however, shall a tree with
a diameter of eight inches or more as measured three feet above the base of
the trunk be removed without prior approval by the Planning Board. The County
Soil and Water Conservation District shall be requested to review the vegetative
aesthetic value of the proposed subdivision and consult with the Planning
Board.